MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e4ae7f58c9e924cc6dac0208b5f6438e15174d978d013e0125f814af1509afb7. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry



Formbook


Vendor detections: 18


Intelligence 18 IOCs YARA 3 File information Comments

SHA256 hash: e4ae7f58c9e924cc6dac0208b5f6438e15174d978d013e0125f814af1509afb7
SHA3-384 hash: 4fd862cd9bc84a2f70f050084caa64162642dc157eecc0a717db6563ecca6c835505fe56f41bb11bf596bc203b43f617
SHA1 hash: a54663ec3ba369aafa99f0b17bcc619647f5c576
MD5 hash: 8dda4763833394bb973de7c7d57cd11e
humanhash: orange-finch-johnny-illinois
File name:file
Download: download sample
Signature Formbook
File size:305'900 bytes
First seen:2023-02-08 14:51:26 UTC
Last seen:2023-02-08 16:31:07 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 6144:vYa6ZL15I6fy+cKrA7l74WvhOjUtI4zDja5EeMs/0V8CzQ:vYr3IDgrAx7dZOjYZK5ERV8p
TLSH T14654123469E8D0B7ECA70A736EB1933B6FFEA64715212B4E2780AF593D25341C60D361
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter jstrosch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
184
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
PO#10391.docx
Verdict:
Malicious activity
Analysis date:
2023-02-08 10:23:53 UTC
Tags:
opendir exploit cve-2017-11882 loader trojan formbook stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Searching for synchronization primitives
Launching cmd.exe command interpreter
Reading critical registry keys
DNS request
Sending an HTTP GET request
Unauthorized injection to a recently created process
Launching a process
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
83%
Tags:
overlay packed shell32.dll
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 801868 Sample: file.exe Startdate: 08/02/2023 Architecture: WINDOWS Score: 100 33 Snort IDS alert for network traffic 2->33 35 Malicious sample detected (through community Yara rule) 2->35 37 Antivirus detection for URL or domain 2->37 39 4 other signatures 2->39 9 file.exe 19 2->9         started        process3 file4 25 C:\Users\user\AppData\Local\...\favmswpwx.exe, PE32 9->25 dropped 12 favmswpwx.exe 9->12         started        process5 signatures6 51 Multi AV Scanner detection for dropped file 12->51 53 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 12->53 55 Maps a DLL or memory area into another process 12->55 15 favmswpwx.exe 12->15         started        process7 signatures8 57 Modifies the context of a thread in another process (thread injection) 15->57 59 Maps a DLL or memory area into another process 15->59 61 Sample uses process hollowing technique 15->61 63 Queues an APC in another process (thread injection) 15->63 18 explorer.exe 2 6 15->18 injected process9 dnsIp10 27 americahaseverything.com 108.179.252.52, 49710, 49711, 49712 UNIFIEDLAYER-AS-1US United States 18->27 29 houmenmarket.com 50.87.249.47, 49704, 49705, 49706 UNIFIEDLAYER-AS-1US United States 18->29 31 7 other IPs or domains 18->31 41 System process connects to network (likely due to code injection or exploit) 18->41 22 systray.exe 13 18->22         started        signatures11 process12 signatures13 43 Tries to steal Mail credentials (via file / registry access) 22->43 45 Tries to harvest and steal browser information (history, passwords, etc) 22->45 47 Modifies the context of a thread in another process (thread injection) 22->47 49 Maps a DLL or memory area into another process 22->49
Threat name:
Win32.Trojan.FormBook
Status:
Malicious
First seen:
2023-02-08 11:15:33 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:dcn0 rat spyware stealer trojan
Behaviour
Gathers network information
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Formbook
Unpacked files
SH256 hash:
6fb3515c15daada5ecdb6194a69cc199a68e378ed018e2423d9e2ce2ef6d9493
MD5 hash:
3d5e5048fd971cf530cd06128c0d488c
SHA1 hash:
1d9563e53c7982db06037ae22160e2fbaa9b8243
Detections:
XLoader win_formbook_w0 win_formbook_auto win_formbook_g0
SH256 hash:
42571754dcc7501f6aff155ce4db9c38dd55937bffdc8ce54dfb21900ce9fce6
MD5 hash:
319fd9ed786bd8638c6455806386d20e
SHA1 hash:
ac84ea9a8ccb1b977e758f3be0ed6ad0105d3891
SH256 hash:
21d69211138b02e8f6c02e48936a432d4c284f8fdf76f062d0a845ac96fc6b27
MD5 hash:
12c117fb1a2a279c79f5333c16df2d13
SHA1 hash:
aebd841afdd5855fc0a779bcbdd66cf6eb205512
SH256 hash:
e4ae7f58c9e924cc6dac0208b5f6438e15174d978d013e0125f814af1509afb7
MD5 hash:
8dda4763833394bb973de7c7d57cd11e
SHA1 hash:
a54663ec3ba369aafa99f0b17bcc619647f5c576
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures


MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:azov_Dropped
Author:Potatech
Description:Azov Detection
Rule name:meth_get_eip
Author:Willi Ballenthin
Rule name:shellcode
Author:nex
Description:Matched shellcode byte patterns

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Formbook

Executable exe e4ae7f58c9e924cc6dac0208b5f6438e15174d978d013e0125f814af1509afb7

(this sample)

  
Delivery method
Distributed via web download

Comments